Whitney is believed to be connected to three propane thefts. Surveillance footage of one robbery shows a thief climbing a 6-foot razor-topped fence, police said, before throwing tanks back over the fence.

-Between Dec. 16 and Dec. 17: Five100-poundpropane tanks, four33-poundpropane tanks and two20-poundpropane tanks, valued at approximately $3,000, were stolen from James D. Morrissey Inc. on the 4700 block of Pennypack Street.

-Dec. 22, 1:42 a.m.: A suspect broke intoPhax-air by climbing what police described as a "razor-topped" fence, then threw the tanks back over. Six acetylene tanks were stolen.